$$$2 x^{\frac{4}{3}}$$$ 的积分
您的输入
求$$$\int 2 x^{\frac{4}{3}}\, dx$$$。
解答
对 $$$c=2$$$ 和 $$$f{\left(x \right)} = x^{\frac{4}{3}}$$$ 应用常数倍法则 $$$\int c f{\left(x \right)}\, dx = c \int f{\left(x \right)}\, dx$$$:
$${\color{red}{\int{2 x^{\frac{4}{3}} d x}}} = {\color{red}{\left(2 \int{x^{\frac{4}{3}} d x}\right)}}$$
应用幂法则 $$$\int x^{n}\, dx = \frac{x^{n + 1}}{n + 1}$$$ $$$\left(n \neq -1 \right)$$$,其中 $$$n=\frac{4}{3}$$$:
$$2 {\color{red}{\int{x^{\frac{4}{3}} d x}}}=2 {\color{red}{\frac{x^{1 + \frac{4}{3}}}{1 + \frac{4}{3}}}}=2 {\color{red}{\left(\frac{3 x^{\frac{7}{3}}}{7}\right)}}$$
因此,
$$\int{2 x^{\frac{4}{3}} d x} = \frac{6 x^{\frac{7}{3}}}{7}$$
加上积分常数:
$$\int{2 x^{\frac{4}{3}} d x} = \frac{6 x^{\frac{7}{3}}}{7}+C$$
答案
$$$\int 2 x^{\frac{4}{3}}\, dx = \frac{6 x^{\frac{7}{3}}}{7} + C$$$A
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